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Lantheus Holdings, Inc. (LNTH) Investors: November 10, 2025 Filing Deadline in Securities Class Action - Contact Kessler Topaz Meltzer & Check, LLP

Key Takeaway: Lantheus Holdings, Inc. (LNTH) is facing a securities class action lawsuit for allegedly making false and misleading statements about its product PYLARIFY. The lawsuit covers claims related to a Class Period between February 26, 2025, and August 5, 2025, with a deadline for lead plaintiff applications set for November 10, 2025. The complaint highlights issues regarding Lantheus's pricing strategy amid competitive market conditions, suggesting that this could impact the company's financial growth and reputation. Investors who have sustained losses are encouraged to contact the law firm Kessler Topaz Meltzer & Check, LLP for assistance.

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CONCERNS & RISKS

  • A securities class action lawsuit has been filed against Lantheus Holdings, alleging misconduct during the Class Period.
  • The complaint claims Lantheus provided false and misleading statements regarding the competitive position of PYLARIFY.
  • Concerns about Lantheus's early 2025 price increase have been raised, indicating potential risks to revenue and growth.

Full Press Release Details

RADNOR, Pa., Sept. 24, 2025 (GLOBE NEWSWIRE) -- The law firm of Kessler Topaz Meltzer & Check, LLP (www.ktmc.com) informs investors that a securities class action lawsuit has been filed against Lantheus Holdings, Inc. (“Lantheus”) (NASDAQ: LNTH) on behalf of those who purchased or otherwise acquired Lantheus securities between February 26, 2025, and August 5, 2025, inclusive (the “Class Period”). The lead plaintiff deadline is November 10, 2025.
CONTACT KESSLER TOPAZ MELTZER & CHECK, LLP:
If you suffered Lantheus losses, you may CLICK HERE or copy and paste the following link into your browser: https://www.ktmc.com/new-cases/lantheus-holdings-inc?utm_source=Globe&mktm=PR
You can also contact attorney Jonathan Naji, Esq. by calling (484) 270-1453 or by email at info@ktmc.com.
DEFENDANTS’ ALLEGED MISCONDUCT:
The complaint alleges that, throughout the Class Period, Defendants made false and/or misleading statements and/or failed to disclose that: (1) Lantheus provided investors with misleading statements concerning the true state of PYLARIFY’s competitive position, notably, that Lantheus was not equipped to properly assess the pricing and competitive dynamics for PYLARIFY; (2) Lantheus failed to properly disclose that its early 2025 price increase, issued despite price erosion the year prior, created an opportunity for competitive pricing to flourish, risking PYLARIFY's price point, revenue, and overall growth potential; and (3) as a result, Defendants' public statements were materially false and misleading at all relevant times.
Please CLICK HERE to view our video or copy and paste this link into your browser: https://youtu.be/zO1eJHDw73s
THE LEAD PLAINTIFF PROCESS:
Lantheus investors may, no later than November 10, 2025, seek to be appointed as a lead plaintiff representative of the class through Kessler Topaz Meltzer & Check, LLP or other counsel, or may choose to do nothing and remain an absent class member. A lead plaintiff is a representative party who acts on behalf of all class members in directing the litigation.  The lead plaintiff is usually the investor or small group of investors who have the largest financial interest and who are also adequate and typical of the proposed class of investors. The lead plaintiff selects counsel to represent the lead plaintiff and the class and these attorneys, if approved by the court, are lead or class counsel. Your ability to share in any recovery is not affected by the decision of whether or not to serve as a lead plaintiff.
Kessler Topaz Meltzer & Check, LLP encourages Lantheus investors who have suffered significant losses to contact the firm directly to acquire more information.
ABOUT KESSLER TOPAZ MELTZER & CHECK, LLP:
Kessler Topaz Meltzer & Check, LLP prosecutes class actions in state and federal courts throughout the country and around the world. The firm has developed a global reputation for excellence and has recovered billions of dollars for victims of fraud and other corporate misconduct. All of our work is driven by a common goal: to protect investors, consumers, employees and others from fraud, abuse, misconduct and negligence by businesses and fiduciaries. The complaint in this action was not filed by Kessler Topaz Meltzer & Check, LLP. For more information about Kessler Topaz Meltzer & Check, LLP please visit www.ktmc.com.
Kessler Topaz Meltzer & Check, LLP
280 King of Prussia Road
May be considered attorney advertising in certain jurisdictions. Past results do not guarantee future outcomes.

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Frequently Asked Questions

What is the lead plaintiff deadline for Lantheus lawsuit?

The deadline to be appointed lead plaintiff is November 10, 2025.

What are the allegations against Lantheus Holdings, Inc.?

Allegations include false statements about PYLARIFY's market position and improper pricing disclosures.

How can Lantheus investors get more information?

Investors can contact Kessler Topaz Meltzer & Check, LLP directly for more details.

What is a lead plaintiff in a class action?

A lead plaintiff represents all class members and directs the litigation.

What is Kessler Topaz Meltzer & Check, LLP known for?

The firm is recognized for prosecuting class actions and protecting investors' rights.

Last updated: Sep 24, 2025